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onsemi 1.5KE10CA
- Part No.:
- 1.5KE10CA
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10CA.pdf
- Description:
- TVS DIODE 8.5VWM 14.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,445
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Product details
Overview
1.5KE10CA from ON Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against ESD, lightning surges, and inductive switching transients. It features a 8.55 V working peak reverse voltage (VRWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current, and 1500 W peak power dissipation for 1 ms. It is used in AC/DC power supplies, industrial control I/O modules, and telecom line interface circuits.
For engineers reviewing the 1.5KE10CA datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected circuit's maximum operating voltage, peak pulse current capability under system-level surge waveforms (e.g., 8/20 μs), thermal derating above 75°C lead temperature, and UL 497B recognition for isolated loop protection compliance.
Technical Context
The 1.5KE10CA operates as a bidirectional Zener-based TVS, conducting in both polarities when transient voltage exceeds its breakdown threshold (9.5–10.5 V at 1 mA). Its low dynamic impedance ensures stable clamping during fast transients, with typical response time under 1 ns and <5 μA leakage above 10 V at 25°C.
It is rated for 1500 W nonrepetitive peak pulse power per 1 ms waveform (Figure 4), with steady-state power dissipation derated linearly from 5.0 W at 75°C lead temperature. Thermal resistance from junction-to-lead is 20°C/W, enabling direct heatsinking via axial leads in high-reliability industrial designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 8.55 V - Maximum continuous reverse operating voltage before clamping begins; must exceed circuit's peak DC or AC voltage. |
| VBR (min/typ/max) | 9.5 / 10.0 / 10.5 V @ 1 mA - Breakdown voltage range defining turn-on threshold; tight tolerance enables predictable protection margin. |
| VC @ IPP | 14.5 V @ 103 A - Clamping voltage during full 1 ms surge; determines maximum stress on downstream ICs. |
| Peak Power | 1500 W @ 1 ms - Surge energy handling capacity per IEC 61000-4-5 Level 4 (4 kV/2 Ω) testing conditions. |
| Leakage Current | <5 μA @ VRWM - Negligible standby power loss and signal integrity impact in high-impedance interfaces. |
| ESD Rating | Class 3 (>16 kV HBM) - Meets stringent electrostatic discharge immunity requirements for end-equipment certification. |
| UL Recognition | UL 497B QVGV2 - Certified for isolated loop circuit protection, supporting safety-compliant telecom and medical equipment design. |
Pinout & Package
1.5KE10CA is housed in an axial-leaded Surmetic plastic package (Case 41A), with cathode band marking one end. Leads are tin-plated, solderable at 230°C for 10 seconds at 1/16″ from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal in forward conduction mode | Provides low-impedance path during negative transients; symmetric bidirectional operation eliminates polarity dependency. |
| Cathode (banded end) | Current entry terminal in reverse conduction mode | Clamps positive transients at VBR; band serves only as mechanical orientation marker, not functional polarity indicator. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC-coupled and floating circuits without external polarity management; eliminates need for dual-diode configurations. |
| 1500 W surge rating | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (2 Ω source) without degradation, supporting industrial-grade immunity. |
| UL 497B recognition | Validated for isolated loop protection in telecom and medical applications, reducing safety certification effort and risk. |
| <1 ns response time | Minimizes voltage overshoot before clamping engages, critical for protecting sub-20 V logic and analog front-ends. |
| Low zener impedance | Ensures consistent VC across varying IPP, maintaining predictable protection margins under real-world surge profiles. |
Applications
| AC/DC Power Supply Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: Installed across AC mains input or DC bus lines to absorb lightning-induced surges and switching transients. IC Role / Device Role / Timing Role: Voltage-clamping protector placed in parallel with rectifier bridge or bulk capacitor. Use Value: Limits transient voltage to ≤14.5 V, preventing overvoltage failure of bridge rectifiers, EMI filters, and primary-side controllers. |
Use Scenario: Mounted at field-side terminals of programmable logic controller (PLC) digital input modules. IC Role / Device Role / Timing Role: Transient shunt for 24 V DC sensor inputs exposed to inductive load switching noise. Use Value: Clamps 1 kV/500 A surge events to safe levels within nanoseconds, preserving optocoupler isolation and microcontroller GPIO integrity. |
| Telecom Line Interface Protection | Medical Equipment Signal Path Protection |
|
Use Scenario: Applied on tip/ring lines of analog telephone interfaces or RS-485 data ports in PBX systems. IC Role / Device Role / Timing Role: Bidirectional surge limiter compliant with GR-1089-CORE and ITU-T K.20 standards. Use Value: Maintains signal fidelity below 10 pF capacitance while meeting UL 497B isolated loop requirements for telecom safety. |
Use Scenario: Integrated into patient-connected ECG or EEG front-end signal chains to suppress defibrillator-induced transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated analog input paths before instrumentation amplifiers. Use Value: Provides Class 3 ESD immunity and 1500 W surge handling without compromising microvolt-level signal resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower peak power (600 W), smaller SMC package (3.5 mm × 4.5 mm), higher VRWM (8.55 V same), identical VBR range. | Preferred for space-constrained PCBs; requires layout optimization for thermal dissipation due to lower PPK and surface-mount thermal path. | Select SMBJ10CA when board area is limited and surge threat level is ≤Level 3 (2 kV); retain 1.5KE10CA for legacy through-hole designs or Level 4+ surge environments. |
| 1.5SMC10CA | Same electrical specs (VRWM, VBR, VC), SMC package, 600 W rating, RoHS-compliant matte tin lead finish. | Used where automated SMT assembly is required and UL 497B is not mandated; lacks UL recognition for isolated loop use. | Choose 1.5SMC10CA for cost-sensitive consumer electronics with moderate surge exposure; choose 1.5KE10CA when UL 497B certification or 1500 W robustness is mandatory. |
Compared with SMBJ10CA and 1.5SMC10CA, the 1.5KE10CA delivers 2.5× higher surge energy handling and certified UL 497B compliance-critical for industrial and medical systems where reliability under worst-case transients and regulatory acceptance are non-negotiable.
Availability
1.5KE10CA is available at Aetrix Electronics and suitable for AC/DC power supply input protection, industrial PLC digital I/O protection, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE10CA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ON Semiconductor (now part of onsemi) is a global semiconductor supplier specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The 1.5KE10CA belongs to the 1.5KExxCA Mosorb™ series-a family of high-power axial-leaded TVS diodes engineered for ruggedized surge protection in harsh electromagnetic environments.
FAQ
What is the clamping voltage of the 1.5KE10CA under maximum surge conditions?
The 1.5KE10CA has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current of 103 A (per 1 ms waveform, Figure 4). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a full-rated transient event. The 1.5KE10CA maintains this clamping performance across its specified operating temperature range and is validated per JEDEC and IEC surge standards.
Is the 1.5KE10CA suitable for bidirectional AC line protection?
Yes, the 1.5KE10CA is explicitly designed as a bidirectional TVS diode, with symmetrical breakdown characteristics in both polarities. Its "CA" suffix denotes clipper-bidirectional functionality, verified by testing in both directions per the datasheet's electrical characteristics table. The 1.5KE10CA is commonly deployed across AC mains inputs, transformer secondaries, and RS-485 differential pairs where polarity-agnostic surge suppression is required.
Does the 1.5KE10CA have UL recognition for safety-critical applications?
Yes, the 1.5KE10CA carries UL 497B recognition (File #116110, QVGV2 category) for isolated loop circuit protection. This certification covers dielectric withstand, endurance conditioning, and strike voltage breakdown testing-making it suitable for telecom, medical, and industrial equipment requiring third-party safety validation. The 1.5KE10CA is part of the fully recognized 1.5KE6.8CA–1.5KE250CA series.
How does thermal derating affect the 1.5KE10CA's power handling capability?
The 1.5KE10CA's steady-state power dissipation is rated at 5.0 W at 75°C lead temperature, derating linearly at 20 mW/°C above that point. Its junction-to-lead thermal resistance is 20°C/W, meaning a 10°C rise in lead temperature reduces allowable continuous power by 200 mW. For pulsed operation, peak power remains 1500 W at 25°C but must be reduced per Figure 1's ambient temperature curve and Figure 6's duty cycle derating guidelines.
What is the significance of the cathode band marking on the 1.5KE10CA?
The cathode band on the 1.5KE10CA indicates physical orientation only-it does not define functional polarity because the device is bidirectional. Both terminals behave identically under reverse and forward transients. The band aids visual inspection and alignment during manual assembly but imposes no circuit polarity constraint. Designers may orient the 1.5KE10CA either way in PCB footprints without affecting clamping behavior or reliability.
1.5KE10CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.5V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 108A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -50°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE10CA FAQ
1.How can I place an order for 1.5KE10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10CA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1.5KE10CA reliable?
The price and inventory of 1.5KE10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10CA is usually 5 days.
3.What payment methods are accepted for 1.5KE10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10CA?
1.5KE10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10CA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1.5KE10CA?
For technical support, including 1.5KE10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10CA requirements.
6.How does Aetrix verify that 1.5KE10CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE10CA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1.5KE10CA meets industry standards.
7.What is the process for return or replacement of 1.5KE10CA?
All 1.5KE10CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10CA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1.5KE10CA part is unused and in its original packaging.
Return procedure for 1.5KE10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10CA Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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